Tube bending machine



FIG. 1 is a right side view in elevation;

FIG. 2 is a left side view in elevation;

FIG. 3 is a front view in elevation;

FIG. 4 is a rear view in elevation;

FIG. 5 is a top plan view; and,

FIg. 6 is a bottom view.

The cord member has been shown broken away for ease of illustration. 

The ornamental design for a tube bending machine, as shown and described. 